Home / 5,268.18-7,270.10-2,878.19

Finding the Fourth Proportional to 5,268.18, 7,270.10 and 2,878.19

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Solution

The fourth proportional to 5,268.18, 7,270.10 and 2,878.19 is: 3,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.18 : 7,270.10 = 2,878.19 : x
  2. Step 2: Convert to fraction form
    5,268.18/7,270.10 = 2,878.19/x
  3. Step 3: Cross multiply
    5,268.18x = 7,270.10 × 2,878.19
  4. Step 4: Simplify right side
    5,268.18x = 20,924,729.12
  5. Step 5: Solve for x
    x = 20,924,729.12/5,268.18
  6. Step 6: Final answer
    x = 3,971.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.